Term
| What is a planetary nebula and when is it formed? |
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Definition
A planetary nebula is Carbon flakes and gas that form after the cooling of the outer layers of a star after the all the Helium has been consumed
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Term
| What does the star producing the Planetary Nebula eventually become? |
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Definition
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Term
| Will this be the fate of the Sun? |
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Definition
| After a long period of time, yes. |
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Term
| What stage comes after the planetary nebula? |
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Definition
| The core becomes a white dwarf |
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Term
| How does a dwarf star compare to our Sun in Size and temperature? |
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Definition
| a white dwarf is 1/100 the size of our sun and it is much hotter |
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Term
| How does a star become a nova? |
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Definition
When enough material builds up on the surface of a white dwarf, it causes an explosion, known as a nova.
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Term
What is the Chandrasekhar limit?
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Definition
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Term
| What happens if it is exeeded? |
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Definition
| It becomes a type 1A supernova |
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Term
| How is a type 2 supernova produced? |
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Definition
| when a type 1 supernova explodes |
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Term
| How is a type 2 supernova different from a type 1 supernova? |
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Definition
| The energy is much more powerful along with a brighter luminosity. |
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Term
| What is left over in each case? |
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Definition
| A neutron star or black hole, depending on the type of supernova. |
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Term
What is the last element produced in the fusion furnace in the core of a massive star?
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Definition
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Term
| How could elements heavier than iron be produced? |
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Definition
| neurosynthesis - neurons being captured in the star. |
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Term
| What is the crab nebula and how was it formed? |
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Definition
| The crab nebula is a supernova in the Taurus galaxy and it was formed by the supernova explosions |
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Term
| What type of unique star exists in it now? |
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Definition
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Term
| What determines how quickly a star progresses through its life cycle? |
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Definition
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Term
| What are the stages of stellar evolution for low-mass stars? |
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Definition
Low-mass: interstellar cloud; low mass star burning hydrogen; red giant phase 1; yellow giant phase; red giant phase 2; outer layers become planetary nebula; white dwarf
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Term
| What are the stages of stellar evolution for high-mass stars? |
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Definition
High-mass: interstellar cloud; protostar; massive star; pulsating yellow star; red supergiant; supergiant; supernova; neutron star or black hole |
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Term
| What is the connection between neutron stars and pulsars? |
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Definition
| They are the same exact thing. Pulsars are neutron stars but not all neutron stars can be pulsars. |
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